Alkaline phosphatase test cost in Santa Rosa, CA — inpatient
In Santa Rosa-Petaluma, CA, 5 hospitals list a cash price for alkaline phosphatase (ALP) blood test as an inpatient: from $8.93 to $97.00, with a median of $17.85. The lowest listed price is at Providence Santa Rosa Memorial Hospital and 1 other hospital — $8.92 less than the median here. Across California, the median is $36.96 at 211 hospitals.
Cash prices at 5 facilities across 3 cities for code 84075, as an inpatient (admitted to hospital) . Collected Sep 29, 2026; the hospital files themselves were last updated between Apr 1, 2026 and Apr 1, 2026.
Where each hospital's price falls
Each dot is one hospital's cash price on a scale from the lowest to the highest in Santa Rosa-Petaluma, CA.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list |
|---|---|---|---|---|
| Providence Santa Rosa Memorial Hospital lowest Santa Rosa, CA · (707) 525-5300 HC ALKALINE PHOS File of Apr 1, 2026 · source file | $8.93 | $17.50 | — | 49% |
| Petaluma Valley Hospital lowest Petaluma, CA · (707) 778-1111 HC ALKALINE PHOS File of Apr 1, 2026 · source file | $8.93 | $17.50 | — | 49% |
| Healdsburg Hospital Healdsburg, CA · (707) 431-6500 HC ALKALINE PHOS File of Apr 1, 2026 · source file | $17.85 | $35.00 | — | 49% |
| Petaluma Valley Hospital Petaluma, CA · (707) 778-1111 HC ASSAY OF PHOSPHATASE ALKALINE LAB File of Apr 1, 2026 · source file | $18.47 | $36.22 | — | 49% |
| Providence Santa Rosa Memorial Hospital Santa Rosa, CA · (707) 525-5300 HC ASSAY OF PHOSPHATASE ALKALINE LAB File of Apr 1, 2026 · source file | $18.47 | $36.22 | — | 49% |
| Kaiser Foundation Hospital - Santa Rosa Santa Rosa, CA · (707) 571-4000 ASSAY OF PHOSPHATASE ALKALINE source file | $36.96 | $66.00 | $5.00–$15.00 | 44% |
| Sutter Santa Rosa Regional Hospital Santa Rosa, CA · (707) 576-4000 HCHG ALKALINE PHOSPHATASE File of Apr 1, 2026 · source file | $97.00 | $97.00 | — | — |
Inpatient: lowest $8.93, median $17.85, highest $97.00 — a 10.9× difference within the same market.
As an outpatient, the same code is billed by 6 facilities here, median $27.41 — that is the price to compare if you are not being admitted.
Cash or insurance?
At the one hospital here that publishes insurer rates for this code, the cash price is not below the highest rate a health plan has negotiated. If you have insurance but have not met your deductible, you usually pay your plan's negotiated rate, which falls somewhere in the "Insurers pay" column. Paying cash can cost less, but a cash payment usually does not count toward your deductible. Ask the hospital for both numbers before you book.
What it is
An alkaline phosphatase test measures an enzyme from the liver, bile ducts and bones. High levels suggest a blocked bile duct, liver disease or bone disease.
What the price covers
The price usually covers running the test. The blood draw (36415) is often billed as a separate line.